Imagery: Esri

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Waters

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Fly fishing the Blue Mountains

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Kowmung River

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Reach 1

Above Morong Creek

Reach 1 of 2

Kowmung River

Kanangra-Boyd National Park

11.7 km

Reach length

100%

Tree cover on banks

Species recorded

Ways in

The Kowmung headwaters, twelve kilometres of steep, shaded bedrock stream where the Tuglow and the Hollanders come together off the Boyd plateau, and the water NSW DPIRD classifies as general trout water.

This is the day-trip end of a river that otherwise demands a pack and two days. The Kowmung starts as two creeks off the Boyd plateau, nine hundred metres up, and for its first twelve kilometres it is a headwater stream in the strict sense: a bedrock gorge dropping harder than anywhere else on the river, pockets and plunge pools and slots between boulders.

Two things make it the approachable end. A fire trail off Kanangra Walls Road reaches it. And the canopy is a little more open than the dark forest downstream, so light gets to the water in patches, you can see your fly, and a fish can see a beetle land.

The fish are unproven. Nobody has counted them, and the survey record is silent on this stretch. What you have is the classification and the country: this water is a general trout water. Fish it as small water, one careful cast to a pocket and a step upstream, and expect the river to be honest about what it holds.

The season is the trip. The classification puts this water under the NSW trout season, so take the dates from the current NSW freshwater synopsis and fish it from the opening until the first heavy frosts, with a dry you can see in dappled light and a beetle or an ant in mind through summer. There is no gauge up here. The only one on the river is far below at Cedar Ford, and this water rises long before it knows about it. Read the plateau forecast and the river in front of you, and if either is against you, do not go in.

Fish in this water

Each fish is rated by its strongest evidence. A rating says how sure we are a fish is here, not how many there are, whether it is worth fishing for or whether you may keep it.

Possible

Old records, older stocking, a hedged local mention, a rule that names no water, or a weaker link through connected water.

River Blackfish

Recorded on this river · 1918

No live gauge

No gauge readings are available for this water.

Season

Regulations

Driving directions

Water and habitat

Bedrock and boulders, confined between steep banks, falling steadily from the plateau. The fall of this stretch is the top of the whole-river drawing, and it is the steepest part of it: this is where the Kowmung loses height fastest. Pockets between boulders, short plunge pools, bedrock slots, and the occasional gravel tail where a side creek comes in. Nowhere is it wide.

The bank survey draws the headwaters as mostly open woodland rather than the closed canopy of the gorge, with the sky visible above the river more often than not. That is the one advantage this stretch has over the water below: you can see your fly, and the fish can see a beetle land.

Three tributaries matter. The Tuglow and the Hollanders make the river. Morong Creek marks the end of this stretch and is itself included in the trout classification.

BANK COVER ALONG THIS REACH · SATELLITE-CLASSIFIED, 2023–25

Dense trees

Open woodland

Sparse trees

Fish and forage

The survey record is silent on this stretch, so there is no count to give you. In our read, a small, cold, steep headwater with light in it is as good a place for wild trout as the Blue Mountains offers.

Food comes off the trees and out of the gravel. Beetles and ants through summer, the odd cicada from the tall timber, and small caddis and mayfly nymphs under every stone in the tails. In water this small the fish are opportunists and a well-presented dry is rarely refused for being the wrong pattern.

Observation history

Occurrence records do not establish present abundance or angling suitability. Counts are records, not fish. Environmental DNA indicates a detection in water, not a captured fish.

These records fall inside the mapped waterbody or within 250 m of a mapped waterway. Records with stated positional uncertainty above 1 km were excluded; some included locations have unstated uncertainty.

River Blackfish

Gadopsis marmorata

1918 · 1 record · Kowmung River as a whole; not specific to this reach

Unstated or other method (1)

Data: NSW BioNet Atlas (CC-BY 4.0 (Int))

Atlas of Living Australia ↗

When to fish it

From the opening of the trout season until the first heavy frosts. Late spring can be wet and the river responds to a plateau storm within hours; a few dry days and it is clear and low again. Summer is good under the trees and the shade keeps it cool. Autumn is the quiet best of it.

There is no gauge up here. Cedar Ford is far below and reads the whole catchment, so when it is rising this stretch has most likely already risen. Read the forecast for the Boyd plateau and the river in front of you, and if either is against you, do not go in.

THE YEAR ON THIS WATER

Small dries in the pockets

Fly · Oct–Apr

A dry you can see in dappled light, fished once into every pocket.

Beetles and ants

Food · Nov–Mar

The headwater canopy is more open than the gorge, and the terrestrials fall from it all summer.

How to fish it

Small-stream fishing at its most literal. A short four weight if you have one, a leader you can roll and flick under the canopy, and one rig for the day. A Royal Wulff or a small Stimulator you can pick out in dappled light, with a tungsten Pheasant Tail a foot or two beneath it if the pockets are deep enough to warrant it. A dry-dropper covers both without a change.

Fish upstream, one cast to a pocket, then a step. The fish are in the soft water beside the current, in the tail of each plunge pool, and under the boulder shadows. In water this small your approach matters more than the fly: stay low, keep the rod tip out of the light, and never wade a pocket you can fish from below.

Wading is slow and slick. Bedrock in a shaded gorge grows a film that felt or studs only partly answer. If you cannot see the next footing, do not take it.

Access and safety

The fire trails off Kanangra Walls Road are the way in. The Kowmung River Fire Trail from Kanangra Walls Road is reportedly about ten kilometres to the river, with a shorter approach from the Dingo Dell side, and there is a walk-in to Morong Falls off the same road. All of these are inside Kanangra-Boyd National Park, and gates on Kanangra Walls Road may be locked; a track on a map is not a right to drive it today, so check the current park alerts before you leave.

Remote headwater country. Carry a first-aid kit you know how to use, tell someone where you are going, and leave time to get out in daylight.

Ways in

Where roads, tracks and paths reach the water, from mapped roads. Not a right of entry: check gates, land tenure and closures.

Path off Tuglow Caves Walking Track

0.22 km · Walking path · off Tuglow Caves Walking Track

Tuglow Caves Walking Track

0.81 km · Walking path · off Kowmung River Firetrail

Kowmung River Firetrail

10.4 km · 4WD track · off Kanangra Walls Road

See them on the map

Regulations

NSW DPIRD classifies the Kowmung as a general trout water upstream of, and including, Morong Creek. That is this stretch, and Morong Creek with it. A general trout water carries the NSW trout season. Those are the rules an angler here fishes under.

Take the dates and limits from the current NSW freshwater synopsis and the trout closure notification.

Permitted with conditions

NSW

Under NSW's trout and salmon fishing rules, Kowmung River in the Central Tablelands district is classified as a general trout water; the classified extent covers its tributaries upstream from its junction with, and including, Morong Creek.

NSW Department of Primary Industries and Regional Development

Read the rule at source ↗